814.30 RESIDENTIAL AND INSTITUTIONAL NETWORK SIGNALS.

   (a)   Residential Network; Forward Signals. The residential network shall be capable of carrying television channels and the full FM broadcast band. The combined forward trunk and distribution system shall deliver signals to each subscriber's television receiver that will meet or exceed the following specifications at the mean system temperature of seventy degrees Fahrenheit. This shall include the effects of drop cables, interior splits and any terminal equipment such as descramblers and set-top converters.

      (1)   Forward truck amplifier spacing (400 MHz)   22 dB

      (2)   Carrier to cross modulation ratio (54 channels)   56 dB

      (3)   Carrier-to-noise ratio (all channels)   45 dB

      (4)   Frequency response (6 MHz channel)   1 dB

      (5)   Carrier to second order
         Intermodulation product   63 dB

      (6)   Carrier to discrete third order
         Intermodulation product   65 dB

      (7)   Carrier to composite triple beat   53 dB

      (8)   Carrier to hum modulation   23 dB

      (9)   Carrier to echo (greater than 2
         microsecond displayments)   40 dB

      (10)   Envelope delay   200 ns at
channel 2

      (11)   Isolation

         -To RF ingress (5-400 MHz)   100 dB

         -Diplex filters   50 dB

         -A to B cable   60 dB

         -Subscriber tap-tap isolation   30 dB

   (b)   Residential Network; Reverse Signals.

      (1)   Carrier to cross modulation (4 channels
         loading 20 amplifier cascade)   70 dB

      (2)   Carrier to second order intermodulation
         product   63 dB

      (3)   Carrier to noise   46 dB

      (4)   Chrominance to luminance delay
         (channels T-7, T-8)   200 ns

   (c)   Institutional Network.

      (1)   Frequency response (6 MHz channel)   1 dB

      (2)   Carrier to cross modulation (16
         channel loading)   60 dB

      (3)   Carrier to hum modulation   2%

      (4)   Carrier to second order intermodulation
         product   63 dB

      (5)   Carrier to noise   50 dB

      (6)   Carrier to discrete third order
         intermodulation product   65 dB

      (7)   Chrominance to luminance delay
         (worst channel)   100 ns

      (8)   Signal leakage   Will comply with
FCC 76 605

   (d)   Both Networks; Reverse Signals.

      (1)   The reverse channels of both the residential and institutional networks shall have the capability of providing return signals from each subscriber tap to the extreme end of any area without noticeable signal degradation or interference.

      (2)   The system capability shall include transmission of color video, black and white video and both low and high speed data, whether analog or digital.

      (3)   If necessary to prevent the build-up of noise and distortion products, the area shall be divided into sections and subtrunks run to a central hub within the area. Equivalent alternatives such as addressable taps or switches may be utilized.

      (4)   No more than 54 dBmV output level shall be required out of any customer modem to meet the system specifications.

      (5)   Where applicable, the end of the system specifications shall include the effects of any signal reprocessing equipment necessary to achieve forward transmission.

      (6)   For Cable A signals, the signal delivered to the subscriber's television receiver, after being transmitted to the headend, processed and retransmitted down a forward channel, shall meet the specifications of subsection (a) hereof.

(Ord. 593. Passed 7-12-82.)